Grain-drill.



PATENTED SEPT. 19, 1905.

H. J. CASE.

GRAIN DRILL. APPLICATION FILED JUNE 26,1905.

UNITED STAI IZFSEALIEN I OFFICE.

HENRY J. CASE, OF OWASOO, NEW YORK, ASSIGrNOR TO INTERNATIONAL I-IARVESTER COMPANY, A CORPORATION OF NEW JERSEY.

GRAIN-DRILL.

To all whom, it may concern:

Be it known that I, HENRY J. OAsn, a citi- Zen of the United States, residing at the town of Owasco, in the county of Oayuga and State of New York, have invented certain new and useful Improvements in Grain-Drills,of which the following is a specification, reference being had to the accompanying drawings, forming a part thereof.

My invention relates to grain-drills having furrow-opening disks mounted upon suitable supports, and in particular to the scraper devices designed to clean the rotating disks. It consists in a suitable support for the disk secured to the drag-bar and comprising a boot for the delivery of grain to the furrow made by the disk and a scraper .adjustably secured to the boot and curving upward and outward from the toe and substantially parallel with the leg thereof, the object of the invention being to provide a scraper device that may be adjusted relative to the disk in a manner to increase or decrease the pressure thereof upon the disk by moving it toward or from the center thereof. I attain this object by the mechanism illustrated in the accompanying drawings, in which- Figure 1 is a side view of a disk-support and disk, showing the improved scraper attached to the boot and resting against the convex side of the disk. Fig. 2 is a-view of the opposite side of the disk and support. Fig. 3 is a cross-section of the boot on line A B of Fig. 1, and Fig. 4 is a cross-section on line C D of Fig. 2.

Similar numerals refer to similar parts throughout the several views.

1 represents a portion of the drag-bar having the downwardly-curved rear end portion 2, and 3 is a furrow-opening disk rotatably mounted thereon.

4 is a grain-conductingboot located in rear of the disk and having the forwardly-projecting arm 5 near its upper end secured to the drag-bar by means of the bolt 6. The lower portion of the boot is curved forwardly and downwardly approximately concentric with the axis of the disk and is provided with a toe portion 7 adjacent the lower edge thereof.

8 is a steel scraper, having its rear end curved to substantially conform with the lower curved portion of the boot and is secured thereto between the boot and disk by means of the bolts 9 and 10 passing through Specification of Letters Patent. Application filed is... 26, 1905. Serial No. 266,922.

Patented Sept. 19, 1905.

its inner wall, and its forward end curves upward from the toe of the boot toward the axis of the disk and is formed along its lower outer edge to contact with the disk. The scraper is made adjustable relative to and in a plane substantially parallel. with the disk by means of the slotted opening. through the wall of the boot to receive the bolt 10, which allows the scraper to swing about the bolt 9, as shown by dotted lines in Fig. 1. A clippiece 11 is secured to the scraper, having its rear edge bent outward in a manner to overlap the toe of the boot for the purpose of preventing the entrance of material between the two parts. Secured to the boot upon the opposite side is a supplemental scraper 12, operative to clean the concave side of the disk.

What I claim as m y invention, and desire to secure by Letters Patent, is

1. In a grain-drill, the combination of a .boot, a disk having its bearing forwardly of the boot, a scraper between the disk and boot and adjustably secured to the boot, projecting forwardly and upwardly from the toe thereof, and in engagement with the disk and adjustable in a plane substantially parallel therewith.

2. In a grain-drill, the combination of a boot, a disk having its bearing forwardly of the boot, a scraper adjustably secured to the boot, projecting forwardly and upwardly from the toe thereof, a clip secured to the scraper and embracing the toe of said boot.

3. In a grain-drill, the combination of a disk, a boot in rear thereof and having its lower portion curved downward and forward approximately concentric therewith, a scraper conforming to the curved portion of the boot and adjustably secured thereto, said scraper having its forward end curved upward and forward and arranged to contact with the surface of the disk.

1. In a grain-drill, the combination of a disk, a boot in rear thereof and having its lower portion curved downward and forward approximately concentric therewith, a scraper conforming to the curved portion of the boot and secured thereto by means of bolts passing through openings in the wall thereof and said scraper, one of said openings being slotted in a manner to allow the scraper to swing about one of the bolts.

5. In a grain-drill, the combination of a disk, a boot in rear thereof and having its -lower portion curved downward and forward approximately concentric therewith, a scraper conforming to the curved portion of the boot and secured thereto by means of two bolts spaced apart in the direction of the length of the boot and passing through openings in the wall thereof and in the scraper, the upper opening in the wall being elongated in a manner to allow the scraper to move pivotally IO about the lower bolt.

6. In a grain-drill, the combination of a 

